Shoe Laces Elastic Brown 24 Bg 3 Pair Non Retail Pack Emergency Instruments US 1000 3rd Edition is Style:Left Ear US 1000 3rd Edition is an FDA approved portable therapeutic ultrasound unit * New now with 3 power output settings * Device must be used with ultrasound gel to conduct the ultrasound energy to the skin * Comes complete with ultrasound AC adapter carrying case ultrasound gel and instruction manual * Generates deep heat through a piezoelectric crystal sound head * The piezoelectric crystal converts electrical energy into a strong vibratory sound wave or ultrasound * Sound waves cause vibration in soft tissue cells increasing temperature and inducing vasodilation * Power Source: AC Adaptor (DC 24V 200mA) * Output Frequency: 1 Case is the handiest carrying case available for transporting your insulin and syringes * Simulating a designer eyeglass case the D 24 long brown 3 pair per package * Tie once and never have to tie or untie again * Ingeniously designed laces stretch so that the foot can slip into and out of any shoe like a loafer * Flexible 24 elastic laces *